INGREDIENTS
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1 1/2 pounds skirt steak (or hanger steak)
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1 tablespoon Sherry vinegar
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1 tablespoon balsamic vinegar
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Juice from 1 lemon
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2 tablespoons prepared horseradish
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1 tablespoon Worcestershire sauce
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1 1/2 teaspoons hot sauce
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1/4 cup chopped briny green olives, plus 2 tablespoons olive brine, divided
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1/2 red onion, thinly sliced
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1/2 cup celery half-moons, plus some leaves if you'd like
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2 tablespoons pickled jalapeños
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1 pint cherry tomatoes, halved
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Freshly ground black pepper
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1/4 cup crumbled blue cheese
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1/2 cup parsley leaves